1. Cutler, R. E., Glate, H.: Simultaneous measurement of glomerular filtration rate and effective renal plasma flow with57Co-cyanocobalmin and125I-hippuran.J. Lab. Clin. Med. 65, 1041 (1965).
2. Davies, P. T., Deterding, J. H.: Optimization of counting of samples with double radioactive labelling.Int. J. Appl. Radiat. Isotopes, 25, 293 (1972).
3. Hine, G. J., Burrows, B. A., Apt, L., Pollycove M., Ross J. F., Sarkes L. A.: Scintillation counting for multiple tracer studies.Nucleonics, 13, 25 (1955).
4. Höfer R.: Nierenclearance. Nuklearmedizin. Verl. Hoechst, Frankfurt, 1968.
5. Proc. of Symp. in Rotterdam;B. Houven,1971